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Microsoft Defender External Attack Surface Management vs Microsoft Entra External ID comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Microsoft Defender External...
Ranking in Microsoft Security Suite
33rd
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Attack Surface Management (ASM) (15th)
Microsoft Entra External ID
Ranking in Microsoft Security Suite
16th
Average Rating
7.8
Reviews Sentiment
5.7
Number of Reviews
17
Ranking in other categories
Identity and Access Management as a Service (IDaaS) (IAMaaS) (10th), Customer Identity and Access Management (CIAM) (5th)
 

Mindshare comparison

As of August 2026, in the Microsoft Security Suite category, the mindshare of Microsoft Defender External Attack Surface Management is 1.3%, up from 0.3% compared to the previous year. The mindshare of Microsoft Entra External ID is 1.7%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite Mindshare Distribution
ProductMindshare (%)
Microsoft Entra External ID1.7%
Microsoft Defender External Attack Surface Management1.3%
Other97.0%
Microsoft Security Suite
 

Featured Reviews

AndyChan3 - PeerSpot reviewer
General manager at a tech services company with 201-500 employees
Enhanced visibility and exposes vulnerabilities but needs more integration
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will move to full-scale production in another year, maybe Microsoft External Attack Surface Management…
FS
Consultant at Artifield
Offers strong identity unification but needs better customization
Microsoft Entra External ID can be improved with additional features, specifically customizable flexibility and a customizable user interface for the login dialog. Currently, the login dialog has very limited customization options, which only include font styles, colors, text messages, or brand icons. Last month, Entra ID introduced some customizable features in their login dialog, but this does not apply to Microsoft Entra External ID, indicating a significant gap between the two. In theory, Entra External ID can support many external identity providers where custom login dialogs could be integrated, potentially via SSO feature coordination, although I have not yet confirmed this. Hence, enhanced customizable login options and the ability to use attribute password logins are critical features that are required for Microsoft Entra External ID to gain dominance in the authentication market.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"It seems to be better at protecting from cyberattacks."
"The most valuable feature for me is the firewall capabilities."
"The fact that it is quite integrated into the entire Microsoft environment makes it quite easy to use."
"The experience has been rather good; there are other possibilities, but we made the choice to go with Microsoft, and we have a good experience with that."
"The single sign-on access is the most useful feature we use."
"Microsoft Entra External ID is more secure, offering a secure environment."
"The times that I have gone into it, I found it easy to use and I haven't had any issues with it."
"The impact of having multiple authentication types available significantly helps with security practices using Microsoft Entra External ID."
"The positive impact of Microsoft Entra External ID on my organization is that it enhances ease of use for the administrative side."
 

Cons

"With Microsoft, support is always crazy, it's not easy to get support."
"Further integration across different Microsoft products would be an improvement."
"The integration is not as seamless compared to competitors like Palo Alto."
"A common concern among the customers I visit is the unpredictability of Microsoft's costs at every renewal. This is really bothersome for the customer, and I would say it is the worst element I have seen in these years."
"Single sign-on for external applications such as Oracle could be improved to be a little bit cheaper."
"The authentication methods available are very limited, and this presents a weak point."
"The problem with Microsoft products is that they often cater to enterprise-level needs, which can be too costly for medium-sized businesses."
"Microsoft Entra External ID isn't a complete cloud-based account solution, as it must handle internal employees and collaborate with internal Active Directory."
"I generally find Microsoft solutions expensive, especially in specific offerings."
"The support engineers are not as skilled as our engineers. When they say something would not work, or there is no solution, we usually hear that Microsoft would not support this."
"There is room for improvement in AI technology for Microsoft Entra External ID, particularly in providing detailed alerts."
 

Pricing and Cost Advice

Information not available
"We don't pay separately for Microsoft Entra External ID as it's part of our Microsoft Exchange subscription."
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909,725 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Outsourcing Company
11%
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
6%
Financial Services Firm
13%
Computer Software Company
10%
Manufacturing Company
9%
Outsourcing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise6
 

Questions from the Community

What needs improvement with Microsoft Defender External Attack Surface Management?
Further integration across different Microsoft products would be an improvement. Introduction of more AI automation into the products would also be beneficial. The integration is not as seamless co...
What is your primary use case for Microsoft Defender External Attack Surface Management?
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will ...
What is your experience regarding pricing and costs for Microsoft Entra External ID?
Microsoft is flexible in the pricing for the product, so I cannot say that it is expensive, but definitely they are flexible in the price lists and their ways of doing payments.
What needs improvement with Microsoft Entra External ID?
Not really at the moment, but perhaps when we go deeper into using Microsoft Entra External ID, we may experience some things we may not prefer. However, up to now, we have not encountered anything...
What is your primary use case for Microsoft Entra External ID?
When I say identity, I mean Microsoft Entra External ID. We have been using Microsoft Entra External ID since the beginning of 2022. I am using it as a client. The purposes for using Microsoft Entr...
 

Also Known As

No data available
Azure Active Directory External Identities
 

Overview

Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Microsoft Entra External ID and other solutions. Updated: June 2026.
909,725 professionals have used our research since 2012.